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DEQ's Website is designed to be accessible to all browsers and devices; however, for the best browsing experience, we recommend using a modern, "standards-based" browser, such as Chrome, Firefox, Internet Explorer, or Safari.:


This site is designed to be printable, which means you may print any page simply by choosing "print" in your browser (usually found in the "File" menu at the top of most browsers). Pages printed from do not contain navigation, header, or footer elements to conserve paper and printer ink.


This site uses acronyms throughout its content, with most explained just prior to or immediately after the use. In those rare cases where this is not true, visit our Acronyms page for a description.


DEQ currently uses Google to index and search its Website. This includes the content found within the Division pages.

Site Map and A-Z Index

In addition to a search page, there is a DEQ Site Map that provides links to the landing pages for the main structural categories within the site, allowing faster access to the thousands of Web pages maintained by DEQ. There is also a comprehensive A-Z Index that provides direct links to the key pages within the site. This index is cross referenced in an attempt to provide various paths to the same information.

Accessibility and Standards

This site was designed with accessibility and Web standards in mind. We use the XHTML 1.0 Transitional document type, and include links to skip navigation and content as needed for screen readers and other assistive technology. Our pages are validated using the W3C standards. is also designed to conform to Section 508 standards. Cascading Style Sheets are used for layout, look, and feel and for both screen and print output.

Any page can be validated using the following link and then entering the URL which you wish to validate. Please contact the DEQ Web Master if you find pages that do not validate. For more information about the design or technical aspects of this Website, or to report broken links, questionable content, or pages that do not validate, please contact the DEQ Web Master.

W3C Markup Validation Service

Valid XHTML 1.0 Transitional Valid CSS!

Plugins and Readers

This site uses several formats for documents which may require downloading "plugins" or "readers" for your browser. Plugins and readers are additional software used in conjunction with your Web browser to display certain file types.The plugins needed are listed below:


The Macromedia Flash Player is a multimedia and application player created and distributed by Macromedia. It runs SWF files which can be created by the Macromedia Flash authoring tool, Macromedia Flex, or a number of other Macromedia and third party tools. Flash files are usually embedded or linked from pages within our site. The embedded Flash files (for example, the AQI gauge) will prompt users to install the Flash plugin if it is not already installed.

Download the Flash Plugin

Java Applets

A Java applet is a Java class that is loaded and run by an already-running Java application such as a Web browser. Java applets can be downloaded and executed by a Web browser capable of interpreting Java, such as Microsoft Internet Explorer or Firefox. Java applets are frequently used to add multimedia effects and interactivity to Web pages, such as video displays, animations, calculators, real-time clocks, and interactive games. Java applets are used mainly for graphing and mapping purposes on our Website.

Download the Java Plugin


The Portable Document Format (PDF) is a file format that captures all the elements of a printed document as an electronic image that can be viewed, navigated, printed, or forwarded to someone else. PDF files are created using Adobe Acrobat, Acrobat Capture, or similar products. Acrobat and Reader are widely used to present information with a fixed layout similar to a paper publication. To view and use the files, you need the free Acrobat Reader, which you can easily download. Once you've downloaded the Reader, it will start automatically whenever you want to look at a PDF file. Many modern browsers have a PDF reader embedded in the application.

State Websites use a variety of formats for linked documents. The most commonly used document format (as of 2006) is PDF, which accounts for about 54% of all documents on State Websites. Other formats may be used to meet accessibility requirements or specific agency business purposes.

Use of PDF alone for long documents, or documents with specific, complex formatting intended for special audiences, is strongly discouraged. However, if no HTML or Rich Text Format (RTF) version is provided, and PDF is the best solution, then the Acrobat Accessibility Guidelines are followed.

Adobe Reader software is the global standard for electronic document sharing. It is the only PDF file viewer that can open and interact with all PDF documents. Use Adobe Reader to view, search, digitally sign, verify, print, and collaborate on Adobe PDF files.

The free Adobe Reader (formerly Acrobat Reader) is available as a no-charge download from Adobe's Website, and allows the viewing and printing of PDF files. If your system does not already have the Adobe Reader installed, download the latest version for free.

Contact the DEQ Web Master

For help with this Website, or to submit comments, questions, report a broken link or outdated content, or any other feedback regarding this site, please contact the DEQ Web Team. Be as specific as possible when reporting a broken link and other issues, and include the URL (or address) of the page on which you encountered the error. Requests can only be made by authorized DEQ personnel.